What is the specific function of cryogenic chiller?
The LX -25°C ~ +30°C Recirculating Chillers is controlled by a microcomputer, fully digital Chinese display, easy to operate, and the temperature display adopts high-brightness LED, high and low pressure protection, overload protection, overcurrent protection functions, refrigeration system compressor, oil separator, solenoid valve, expansion valve, etc.
The evaporator is a fully brazed plate heat exchanger and a low temperature resistant circulating pump. There is no leakage and no locked-rotor phenomenon under low temperature conditions. The circulating system is a closed circulating system.
The liquid storage tank and the cooling medium are all made of 304 stainless steel. The corrosion resistance is good, and the whole machine is stable and reliable, which can meet the requirements of continuous production for more than 24 hours for process cold source.
Refrigeration principle of ultra-low temperature circulating cooler: The compressor is used to compress the working medium from low temperature and low pressure gas into high temperature and high pressure gas, and then pass through the condenser and condense into low temperature and high pressure liquid in the condenser.
After being throttled by the throttle valve, it will become low temperature and low pressure liquid. The low temperature and low pressure liquid working medium will be sent into the evaporator, and evaporated in the evaporator to become high temperature and low pressure steam, thus completing the refrigeration cycle.
1. In order to effectively use the cooling capacity to refrigerate food or other items;
2. Conduct product performance test and scientific research test at low temperature;
3. Some cooling processes or air conditioning are realized in industrial production.
The article should release a certain amount of heat when it is cooled or frozen, and the enclosure structure of the refrigeration equipment will also transfer a certain amount of heat during use.
Therefore, in order to maintain the low temperature conditions in the refrigeration equipment, it is necessary to install the refrigeration equipment so as to continuously remove these heat, or use the melting of ice or the sublimation of dry ice to absorb these heat.
Refrigeration equipment cooled by natural ice or artificial ice can only reach limited low temperature, and the technical and sanitary conditions are poor, which is difficult to meet various requirements. Modern refrigeration equipment is cooled by refrigerator.
There are two cooling methods for refrigeration equipment: direct cooling and indirect cooling. Direct cooling is to set the evaporator of the refrigerator in the box and building of the refrigeration device, and use the evaporation of the refrigerant to directly cool the air and cool the objects that need to be cooled.
The advantages of this cooling method are fast cooling speed, small heat transfer temperature difference, simple system and wide application.